Mariners backup catcher Adam Moore was pulled from Wednesday’s game against the Rangers in the eighth inning after injuring his knee while trying to chase after a ball in the dirt.

Moore had to be helped off the field by two trainers and Geoff Baker of the Seattle Times noticed that the 26-year-old could barely take his socks off in the clubhouse afterward.

It was an injury that looked rather serious. And now we have confirmation that it was indeed very serious.

From the Mariners’ official Twitter feed comes word that Moore has been diagnosed with a medial meniscus tear in his right knee and will require surgery.

The M’s are likely to promote veteran catcher Josh Bard from Triple-A Tacoma to serve as Miguel Olivo‘s backup. Moore could be sidelined for up to two months while in recovery mode. He was 1-for-6 on the year.

Ouch, I have had that one. It will be a year before he really trusts the knee again. The good news is that it’s not painful, just really annoying because of the loss of mobility. The worst thing is hobbling around, while watching everyone else play.